What is First Long Island Investors, LLC's NAICS code?

First Long Island Investors, LLC's NAICS code is 5239 (Other Financial Investment Activities).

Insights

Client Weight High net worth focus with $1.9B AUM indicating a strong, affluent client base ripe for expanded advisory services, family office solutions, and tailored wealth management offerings.

Growth Momentum Recognized as a 2025 5-Star RIA Firm, signaling credibility and potential for more strategic partnerships, referrals, and increased mandate sizes from current clients.

Expansion Opportunities Existing family office services and fiduciary capabilities present cross-sell potential into advanced planning, governance, and legacy strategies for families seeking comprehensive wealth stewardship.

Technology Stack Utilization of cloud and data tools (AWS, MySQL, PHP) offers a path to modernize reporting, client portal enhancements, and scalable digital client experiences to attract tech-savvy families.

Community & Compliance Active local involvement and transparent disclosures create trust signals for institutions and family offices; leverage networks for referrals while emphasizing risk controls and disclosure.

Similar companies to First Long Island Investors, LLC

First Long Island Investors, LLC Tech Stack

First Long Island Investors, LLC uses 8 technology products and services including Site Kit, Amazon Web Services, MySQL, and more. Explore First Long Island Investors, LLC's tech stack below.

Site Kit
Analytics
Amazon Web Services
Cloud Hosting
MySQL
Database
PHP
Programming Languages
reCAPTCHA
Security
YouTube
Video Players
Piwik PRO Core
Web Analytics
ShareThis
Widgets

Media & News

First Long Island Investors, LLC's Email Address Formats

First Long Island Investors, LLC uses at least 1 format(s):

First Long Island Investors, LLC Email Formats	Example	Percentage
First@fliinvestors.com	John@fliinvestors.com	89%
First.L@fliinvestors.com	John.D@fliinvestors.com	4%
FLast@fliinvestors.com	JDoe@fliinvestors.com	5%
Middle@fliinvestors.com	Michael@fliinvestors.com	2%

Frequently Asked Questions

What is First Long Island Investors, LLC's phone number?

You can contact First Long Island Investors, LLC's main corporate office by phone at

+1-516-935-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is First Long Island Investors, LLC's official website and social media links?

First Long Island Investors, LLC's official website is fliinvestors.com and has social profiles on LinkedIn Crunchbase.

How much revenue does First Long Island Investors, LLC generate?

As of July 2026, First Long Island Investors, LLC's annual revenue is estimated to be $25M - $50M.

What is First Long Island Investors, LLC's SIC code NAICS code?

First Long Island Investors, LLC's SIC code is 6211 - Security Brokers, Dealers, and Flotation Companies NAICS code is 5239 - Other Financial Investment Activities.

How many employees does First Long Island Investors, LLC have currently?

As of July 2026, First Long Island Investors, LLC has approximately 19 employees across 1 continents, including North America. Key team members include Vice President - Portfolio Administration: A. Y.Executive Director: B. D.Education Director: C. G.. Explore First Long Island Investors, LLC's employee directory with LeadIQ.

What industry does First Long Island Investors, LLC belong to?

First Long Island Investors, LLC operates in the Investment Management industry.

What technology does First Long Island Investors, LLC use?

First Long Island Investors, LLC's tech stack includes Site KitAmazon Web ServicesMySQLPHPreCAPTCHAYouTubePiwik PRO CoreShareThis.

What is First Long Island Investors, LLC's email format?

First Long Island Investors, LLC's email format typically follows the pattern of First@fliinvestors.com. Find more First Long Island Investors, LLC email formats with LeadIQ.

When was First Long Island Investors, LLC founded?

First Long Island Investors, LLC was founded in 1983.

First Long Island Investors, LLC

Q: What technology does First Long Island Investors, LLC use?

First Long Island Investors, LLC's tech stack includes Font Awesome, Open Graph, WordPress Block Editor, Google Hosted Libraries, Google Tag Manager.

Investment ManagementNew York, United States11-50 Employees

First Long Island Investors, LLC is an investment management firm that provides individualized guidance on preserving, growing, and administering both liquid and illiquid wealth for high-net-worth individuals, families, and select institutions. Based in Jericho, Long Island, and founded in 1983, the firm emphasizes aligning its principals’ investments with those of its clients and offers family office services as part of its advisory work. The firm oversees about $1.9 billion in assets as of December 31, 2023.

Operating in the investment management industry, it targets sophisticated clients seeking tailored advice and comprehensive wealth administration. In 2025, InvestmentNews named First Long Island Investors a 5-Star RIA Firm, reflecting external recognition of its service standing.